Cluster test driver 4 atoms -25 25 xlo xhi -25 25 ylo yhi -25 25 zlo zhi 1 atom types Atoms 1 1 2.007849 1.586086 2.268554 2 1 2.12772 3.766083 1.838374 3 1 4.424479 1.287894 2.441313 4 1 3.363204 2.429439 0.4572432 Masses 1 28.0855